[SOLVED] NTP access degredation over a few days --> updated to a new ZA build

If this is your first visit, be sure to
check out the FAQ by clicking the
link above. You may have to register
before you can post: click the register link above to proceed. To start viewing messages,
select the forum that you want to visit from the selection below.

ATTENTION: Windows 10 users

Beta 2 build is now available!

If you just upgraded to Windows 10 or running build 10240 or greater of Win 10 pre-release you will need to download and install the new version of ZoneAlarm 14.0.157.000

[SOLVED] NTP access degredation over a few days --> updated to a new ZA build

10.0.243.000 XPSP3/32

I can repeatedly show that when ZA has been running for a few days it causes access to NTP servers to degrade until eventually they are inaccessible.

I can't search for this topic in the forums Search as NTP is too short. I don't know if this is a specific NTP protocol bug (UDP 123), or just a symptom of a more general issue. Other network access seems to work OK (browsing for instance).

Basically I log the success of an SNTP client (based on a 2008 C++ example by Naughter) at accessing an NTP server on my ISP's local net (so on their local net separated from me by the ADSL link).

Initially every 10second access is successful, then after a couple of days it starts to fail until after a couple more days it is virtually inaccessible.
If I then restart (or just stop) ZA, I get the access back, and the pattern repeats.

And I believe this problem has existed for quite a while (months/years), it is only recently I have spotted the connection.

Please advise how I get this investigated and fixed. And any workarounds.

Re: NTP access degredation over a few days

The problem seems have been resolved by updating to a more recent version of ZA as informed by OP. It would have been useful to be informed of the resolution of the issue earlier. I have cleaned up the thread to facilitating the reading from other users and pointed to the solution in thread subject.